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Tho Huu Le, Thinh Quang Bui, Phu Hoang Dang, Hai Xuan Nguyen, Truong Nhat Van Do

The present study investigated the phytochemical and biological properties of the rhizomes C. aromatica. From the CHCl3 extract of C. aromatic rhizomes, six known compounds, including (-)-hannokinol, (3R,5R)-3,5-diacetoxy-1,7-bis(4- hydroxyphenyl)heptane, naringenin, 2-(4- (hydroxymethyl)phenyl)propan-2-ol, 5-hydroxymethylfurfural, and bisacurone, were isolated. All compounds were tested on the biological inhibitory activities against tyrosinase, αglucosidase, and urease. It was the first time all compounds were isolated from rhizomes of C. aromatica Salisb. | Cite this paper Vietnam J. Chem. 2023 61 S2 60-65 Research Article DOI 10.1002 vjch.202300062 Chemical properties and inhibitory activities of tyrosinase α-glucosidase and urease from chloroform extract of Curcuma aromatica Salisb. rhizomes Tho Huu Le1 2 3 Thinh Quang Bui1 2 Phu Hoang Dang1 2 3 Hai Xuan Nguyen1 2 3 Truong Nhat Van Do1 2 3 Mai Thanh Thi Nguyen1 2 3 Nhan Trung Nguyen1 2 3 1 Faculty of Chemistry University of Science 227 Nguyen Van Cu Road District 5 Ho Chi Minh City 70000 Viet Nam 2 Vietnam National University of Ho Chi Minh City Vo Truong Toan Road Linh Trung district Thu Duc City Ho Chi Minh City 70000 Viet Nam 3 Research Lab for Drug Discovery and Development University of Science 227 Nguyen Van Cu Road District 5 Ho Chi Minh City 70000 Viet Nam Submitted February 18 2023 Revised April 13 2023 Accepted April 24 2023 Abstract quot Nghệ trắng quot has the scientific name of Curcuma aromatica Salisb. belongs to the Ginger family Zingiberaceae and its rhizomes are used to prevent aging anti-inflammatory and improve skin. From the chloroform extract of C. aromatica six known compounds including - -hannokinol 1 3R 5R -3 5-diacetoxy-1 7-bis 4-hydroxyphenyl heptane 2 naringenin 3 2- 4- hydroxymethyl phenyl propan-2-ol 4 5-hydroxymethylfurfural 5 and bisacurone 6 were isolated. Structures of all compounds were elucidated by analyzing NMR data together with comparing them to references. All isolated compounds were found for the first time in the C. aromatia rhizomes grown in Vietnam. The results of bioactivity evaluation showed that naringenin 3 has an effect against tyrosinase and α-glucosidase with the IC50 values of 96.4 and 248.2 µM respectively. - -Hannokinol 1 is a moderate bioactivity ingredient capable to inhibiting α-glucosidase and urease with the IC50 value of 216.4 and 244.4 µM respectively. Consequently these results suggest that chloroform extract of C. aromatica may be a practical therapeutic approach for diabetes melanogenesis and stomach .